145134555 has 16 divisors (see below), whose sum is σ = 236023584. Its totient is φ = 76135680.

The previous prime is 145134553. The next prime is 145134581. The reversal of 145134555 is 555431541.

It is not a de Polignac number, because 145134555 - 2¹ = 145134553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145134551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78394 + ... + 80223.

It is an arithmetic number, because the mean of its divisors is an integer number (14751474).

Almost surely, 2^145134555 is an apocalyptic number.

145134555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145134555 is a deficient number, since it is larger than the sum of its proper divisors (90889029).

145134555 is a wasteful number, since it uses less digits than its factorization.

145134555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158686.

The product of its digits is 30000, while the sum is 33.

The square root of 145134555 is about 12047.1803755070. The cubic root of 145134555 is about 525.5212419551.

The spelling of 145134555 in words is "one hundred forty-five million, one hundred thirty-four thousand, five hundred fifty-five".